Bird feeder



FIG. 1 is a perspective view of a bird feeder showing my new design;

FIG. 2 is a perspective view thereof, with the shelf in an opened position;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a side elevational view thereof, the undisclosed side being a mirror image;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The phantom lines shown in all figures are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a bird feeder, as shown and described. 